Portable toilet



FIG. 1 is a perspective view of a portable toilet showing our newdesign;

FIG. 2 is a front elevation thereof;

FIG. 3 is a right side elevation thereof;

FIG. 4 is a left side elevation thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a rear elevation thereof.

The ornamental design for a portable toilet, substantially as shown anddescribed.